Pump and filling plug



April 24, 1951 E. MAZZA v PUMP AND FILLING PLUG 2 Sheets-Sheet 1 Filed Jan. 22, 1947 JNVENTUR ERIC NAZZA BY W ATTORNEY April 24, 1951' E. MAZZA 2,550,157

PUMP AND FILLING PLUG Filed Jan. 22, 1947 2 Sheets-Sheet 2 ATTORNEY Patented Apr. 24, 1951 [UNITED STATES PATENT OFFICE PUMP AND FILLING PLUG Eric Mazza, Bronx, N. Y. Application January 22, 1947, Serial No. 723,592 3 Claims. (Cl. 222-385) This invention relates to a pump in combination' with a reservoir and a filling plug, and more particularly to a pumping means for pumping fluid from a tank through a filling plug into a second tank.

Since pumps in general for pumping a fluid from one container to another are old in the art we are primarily concerned with th use of an :used is a mixture of gasoline and oil. Most of these motors, when mounted, are in a rather awkward position for refilling their fuel tank and the usual procedure is rather a crude method of pouring the mixed fuel and; in so doing, a great deal of the fuel is spilled or lost. Therefore, this invention presents a compact combination of r The fuel pump I I has an outlet port :2 that is connected to a flexible hose I3. A clamp I4 is aillxed to a filling plug I5 and clamps about the barrel of the pump II. The hose I3 is connected at its opposite end to an inlet port I6 of the filling plug E5. The pump II is comprised of a tubular shell I8 having at one end thereof a plug Is that may be attached to the tube I8 by screws or any other mounted means. A bore 26, through the center of the plug Iii is provided at its inner end with a larger bore 21 and a shaft 22 is mounted through the bore 2|. A plurality of leather washers 23 may be mounted in the bore El and cemented or clipped into the position illustrated in Fig. 1 to retain them in this relationship. The leather washers 23 provide a sealing bushing for the shaft 22 which is mounted to reciprocate therein. The upper end of shaft 22 is provided pump and filling-plug connectedby a flexible hose I that permits pumping fluid from an auxiliary 1 fuel tankrof the portable type, through the flexible hose and a filling plug that may be fitted to the engine tank to permit the re-fueling of the engine reservoir. Also included in the present invention is a float mounted within the filler cap so that with a normally shallow tank, such as we find with most of the small engines, in refueling the heat will indicate immediately when the fuel has approximately filled the tank and, therefore, the user will have due notice so that they will not over fill and waste fuel in this operation.

, An object of this invention is to provide a compact auxiliary tank and pump that may be con nected to a fuel filling plug and a fuel reservoir for re-fueling said engine.

:A still further object of this invention is to provide are-fueling apparatus that is light, compact and designed specifically for a re-fueling operation and indicates when the re-fueling'has been completed.

Other objects of this inventionwill be apparent by reference to the accompanying detailed specification and the drawings in which:

Fig. 1 illustrates a side elevational view (partially in section) of an auxiliary tank andv a p p,

Fig. 2 illustrates a permanently mounted filling plug (partially in section), and

Fig. 3 illustrates a temporarily mounted filling plug mounted in a fuel tank.

Referring to Fig.1, there is illustrated an auxiliary tank III in which a fuel pump I I is mounted.

with a stop member 2% and spaced above the member 24 to permit grasping same is a handle 25 that is also affixed to the shaft 22. At the lower end of shaft 22 there is a disc 26 which may be integral with the shaft 22 or may be secured thereto. The disc 26 is'provided with a plurality of apertures Z'I. A disc 28 is mounted about the shaft 22 and is free to move in a longitudinal direction. 7 At the lower end of the tube I8 a number of openings or notches 3S are provided and slightly above said notches a small rim 3I- may be provided in the shell is so that a locking ring 32 may be snapped into the rim 3|. Spaced slightly above the locking ring 32 is a permanent circular disc 33 affixed to the tube It. Between the disc 33 and the locking ring 352 there is a screen 34, The disc 33 is p-rovided' with a plurality of apertures 35. The disc 33 is also provided with a central stub shaft 35 on which a disc 3'. is mounted so that it may move in a longitudinal direction and is stopped in one direction by the disc 33 and in the other direction by a stop member 38 on the end of the shaft 35.

It is apparent in operation that pump it may be operated by forcing the handle 25 downward so that disc 26 will reach the lowermost end of its stroke abutting member 38. During the downward movement through the fluid in tank 58, which is also within the tubular member I8, the apertures 2? permit the fluid to pass there-through lifting disc 28. Any pressure that may be developed by the downward movement of disc 25 will not force the fluid from the inner chamber of tube I8 as the slightest pressure downward would force the disc 3? to seat against disc 33 acting as a check valve. Thus, when the handle 25 has reached the lower end of its. stroke it is ready to be lifted and move upwardly. As soon as it moves upwardly the disc 28, due to the column of fluid resting thereon, acts as a check valve closing the apertures 21 of the disc 25. Thus, the column of fluid will be forced through the outlet port l2 and tube I3 to the filling plug l5 which in operation would be mounted, as illustrated in Fig. 3, so the handle 25 may be moved back and forth in its normal strokes to force fluid from the tank l0, through the flexible tube l3 and the filling plug [5 into an engine tank, as illustrated in Fig. 3. When the filling plug is not mounted in an engine tank it may be clipped by means of the bracket I4 to the tube [8 which is the main barrel of the pump I I. This holds it securely and in a ready accessible position for a subsequent filling operation.

Referring to Fig. 3, the filling plug |5A is illustrated as mounted in a tank 50. The filling plug l5A is comprised of an outer tube 5| and an inner.

tube 52, which are both open at the lower end, but at the upper end tube 52 is secured by a top member 53 to the outer shell 55. The outer shell 5| is also provided with an aperture 54 connected to an inlet tube 55 which is, in turn, connected to the flexible hose 13A. Contained within the inner tube 52 is a float member 55. The float normally, by means of gravity, will remain at its lowermost position which may be restricted by a stop 51 at the end of the tube 52. The float 55 may also be colored in two colors; the upper portion to a line 58 may be in green, while the lower portion may be colored red. The plug 5! in Fig. 3 is shown mounted in the filling opening of the tank-55 and the plug is normally mounted so that its lower end reaches approximately to the bottom of the tank in which it is used. However, the clip I4 may be secured to the outer tube 5! to thus regulate the length of tube that shall extend into the tank 55. With a deep tank a fair length of tube projecting into the tank is suflicient for the filling operation. In use, the fluid flowing in through tube ISA and inlet port 55 will flow around the tube 52 and into the tank 50. However, as the level of the fluid rises it will also rise in the tube 52 and lift the float 56. The float 55 has a predetermined buoyancy so that when the fluid reaches the approximate full position of the tank the float 56 will have risen so that the red portion of the float will show above the upper rim of the tube 52' indicating that no further filling is permissible. A person utilizing this apparatus will become familiar with the action of the float 5B and may anticipate the exact moment when pumping should stop so that the tank 55 may be completely filled without spilling the fuel in charging same. By lifting the pump and moving the handle of the pump 25, Fig. l, downward and holding the filling plug I5A high enough the fuel in the hose ['3 may be drawn back into the pump and the plug l5A may be returned to its clamped position, as illustrated by plug l5 in Fig. 1, thus the user does not waste any fuel by spilling.

Fig. 2 illustrates another embodiment of the filler plug wherein the plug is permanently mounted in the fuel reservoir, such as 30 of Fig. 3. To insure a means of mounting this plug l5A in the various size filling openings that may be found in the different tanks to be filled, a rubber plug 40 or washer with an angular face thereon is utilized, thus the plug 45 may be permanently mounted on the outer barrel 4| of the fillin plu I5A. However, it is easy to slide this plug 40 up or down to regulate its position on the barrel 4| so that the lower end of the barrel is approximately at the bottom of a filling tank, such as 30. The filling plug HA is similar to that illustrated in Fig. 3, except that after a filling operation it is necessary to close the inlet port 35A so, therefore, the port is internally threaded and a threaded plug 42 is fitted to be secured therein. The plug 42 also has a washer 43 mounted thereon to insure a tight seal, as illustrated in Fig. 2. The plug 42 may be aflixed to a chain or other flexible member to prevent its loss, the other end of the chain being afiixed to the barrel 4 l. A friction cover 44 is also provided to fit externally over the upper end of the inner tubular member 32A, so that when the filler plug l5A is not being utilized the cap 44 may be used to hold the float 36A in the position illustrated in Fig. 2. Thus, the float 36A may actually be forced downward and out of sight, although the tank may be full. However, when the cap 44 is removed the float will indicate whether the tank is empty, that is, to the degree to which the float 36A may register and in a filling operation it will work as already described for the float 32 of Fig. 3. The only difference between the filling plug utilized in Fig. 2 and that illustrated in Fig. 3 is that the one is permanently mounted (Fig. 2) and, therefore, the hose l3 must be attached to the inlet port 35A each time a filling operation takes place, and, of course, the cap 4 must be removed. Therefore, the device, as illustrated in Fig. l and the filling plug illustrated in Fig. 3, are preferable for most filling operations and the tank cap that is ordinarily provided with the tank is used to seal the tank after each filling operation.

This invention may be varied in many ways without departing from the spirit of the'invention and it shall be limited only by the appended claims.

What is claimed is:

l. A fluid reservoir filling apparatus including in combination, a fluid supply container, a hand pump mounted in said container, a fllling plug connected to said pump by a hose line, a reservoir into which said filling plug may be inserted for refueling, a spring clip afiixed to the barrel of said filling plug that acts as a stop when the barrel is inserted in the said reservoir, said filling plug having a float mounted therein, means to limit the depth of penetration of the barrel of said filling plug into said reservoir.

2. The combination of a fluid reservoir and filling plug mounted therein including a seal mounted around the periphery of the barrel of the plug, an inner tube mounted within said plug barrel and secured to said outer barrel, a float mounted in said inner tube, said float having an arm that extends through said plug, said arm being marked to distinguish a predetermined position of said float, a caprnember to close said float chamber and seal said reservoir except when said reservoir is being filled, an inlet port in said filling plug, means to attach a fueling line to said inlet port, means to move said barrel seal to adjust the depth of penetration of said plug into said reservoir, means to register the fluid level of said reservoir when it reaches a predetermined position, and means to indicate When the refueling operation must cease.

3. The combination of a fluid reservoir and filling plug mounted therein including a seal mounted around the periphery of the barrel of the plug, an inner tube mounted within said plug barrel and secured to said outer barrel, a float mounted in said inner tube, said float having an arm that extends through said plug, said arm move said barrel seal to adjust the depth of pene- 7 UNITED STATES PATENTS tration of said plug into said reservoir, means to Number Name Date remove said cap member and register the fluid 279,165 Holden June 12, 883 level of said reservoir when it reaches a predeter- 1,154,476 Benjamin Sept. 21, 1915 mined position, and means to indicate when said 1,506,324 Owens Aug. 26, 1924 fluid supply must be stopped in refueling said 19 1,779,869 Andreasen Oct. 28, 1930 reservoir. 2,151,069 Bahr Mar. 21, 1939 2,560,157 5 6 being marked to distinguish a predetermined posi- REFERENCES CITED tion of said float an arm submerged within said The following references are of record in the plug, an inlet port in said filling plug that may file of this patent: be connected to a source of fluid supply, means to ERIC MAZZA! 

